He's Been Tearing It Up With 30 Seconds to Mars

One of the biggest reasons Leto's been off the movie map so much is because he's busy touring with his band, 30 Seconds to Mars. You've probably heard a few of their popular songs, like "Kings and Queens." Leto formed the band in 1998 with brother Shannon, and it took off in the 2000s, winning three MTV Video Music Awards and seven MTV Europe Music Awards.